Hello,
UPDATE: Setting phpdocxconfig.ini with PHP code
phpdocxconfig.ini is handled in PhpdocxUtilities.php in the parseConfig method. There's no option to customize the path to phpdocxconfig.ini but changing this method, we move the request to the dev team to be added to the next release of phpdocx.
We recommend you to move the file to the new path and create a symlink in the config folder.
Regards.